Stripe order and quasiparticle Nernst effect in cuprate superconductors
Abstract
After a brief review of current ideas on stripe order in cuprate high-temperature superconductors, we discuss the quasiparticle Nernst effect in the cuprates, with focus on its evolution in non-superconducting stripe and related nematic states. In general, we find the Nernst signal to be strongly enhanced by nearby van-Hove singularities and Lifshitz transitions in the band structure, implying that phases with translation symmetry breaking often lead to a large quasiparticle Nernst effect due to the presence of multiple small Fermi pockets. Open orbits may contribute to the Nernst signal as well, but do so in a strongly anisotropic fashion. We discuss our results in the light of recent proposals for a specific Lifshitz transition in underdoped YBCO and make predictions for the doping dependence of the Nernst signal.
Keywords
Cite
@article{arxiv.1008.3472,
title = {Stripe order and quasiparticle Nernst effect in cuprate superconductors},
author = {Andreas Hackl and Matthias Vojta},
journal= {arXiv preprint arXiv:1008.3472},
year = {2010}
}
Comments
10 pages, 4 figs, article prepared for a special issue of New J Phys